Video · exFAT camera card
H.265/HEVC MP4: recover after a quick format
Can HEVC clips in an MP4 container be recovered after a quick format?
Short answer
Often, provided no new clip was recorded: a quick format replaces file-system records, while HEVC video blocks usually stay until overwritten. Eject the card now. Because HEVC frames depend on each other, one overwritten gap can break the picture up to the next keyframe, so play each recovered file from start to finish.
The situation
The medium now has a new empty directory, while the previous HEVC clips in an MP4 container is missing.
The empty folder you are looking at is a new exFAT directory, written in a second or two over the old one. The HEVC recordings underneath it were not deleted block by block; they simply have no entry pointing at them any more.
01 / Diagnose
Work out what actually disappeared
A quick format writes new management structures and leaves the rest of the medium as it was, which is why a scan can still find MP4 signatures afterwards. With HEVC the risk sits in the content: frames reference earlier frames, so a single overwritten region does not cost one picture but everything up to the next keyframe.
A quick format can replace file-system records without immediately overwriting every older content block. For H.265/HEVC MP4, this matters because the container, HEVC parameters and timeline all need to remain consistent
Check the last known path, trash and backups without writing to the original device.
02 / Protect the source
Preserve the best recovery chance
- 1
Eject the freshly formatted card now and resist the urge to shoot one short test clip to check the camera still works.
- 2
Record the shooting settings from memory or from another card: bit depth, frame rate, resolution and the approximate length of each take.
- 3
Scan the card through a reader without mounting it for writing, or build an untouched image first and run the search against that.
- 4
Put exported clips on a separate disk and play each one right through, watching for blocks that break up after a splice.
Do not reformat again, do not let the camera initialise the card, and do not copy anything onto it, not even a small file. A quick format left your HEVC data intact; a second round of writing is what actually destroys it.
03 / Choose the method
Match the tool to the source
For stable, readable exFAT, NTFS and FAT16/FAT32 or uncompressed IMG, DD, RAW and BIN images.
Unconfirmed exports are marked .UNVERIFIED.
This holds for a quick format only. A full format that wrote zeros across the medium, or a card that has already been filmed on again, leaves nothing for a read-only scan to find, and File Recovery Hero cannot reconstruct overwritten HEVC frames.
04 / Verify
Check the recovered content, not just its name
Trust a clip only after it plays without a stutter from start to finish and matches the length you remember filming. Watch the detail in motion: smeared or frozen sections that clear at a keyframe mean the recovered stream has holes, even though the file opens.
Keep the source until two verified copies exist. One working preview is not enough.
Sources and technical references
FAQ
Questions about this recovery case
Can exFAT camera card be recovered in this situation?+
The empty folder you are looking at is a new exFAT directory, written in a second or two over the old one. The HEVC recordings underneath it were not deleted block by block; they simply have no entry pointing at them any more. The result still depends on what remains readable on the source.
What should I avoid before scanning?+
Do not reformat again, do not let the camera initialise the card, and do not copy anything onto it, not even a small file.
Does scanning write to my memory card?+
Your memory card is only read. Nothing is saved to it.
How do I know whether the result is complete?+
Trust a clip only after it plays without a stutter from start to finish and matches the length you remember filming.